* {
  margin: 0;
  padding: 0;
}
li {
  list-style: none;
}
body {
  width: 100vw;
  margin: 0 auto;
  background: #fff;
}
.nav {
  position: fixed;
  top: 0;
  left: 0px;
  display: flex;
  justify-content: space-between;
  width: 100vw;
  height: 12vw;
  background-color: #019fe6;
  z-index: 999;
}
.nav .left {
  position: relative;
  width: 40vw;
  height: 12vw;
  font: normal normal 4.8vw/13.5vw "Microsoft YaHei";
  text-indent: 10vw;
  text-decoration: none;
  color: #fff;
}
.nav .left::before {
  content: "";
  position: absolute;
  top: 4vw;
  left: 2vw;
  width: 6vw;
  height: 6vw;
  background: url(../images/首页icon.png) no-repeat center;
  background-size: contain;
}
.nav .right {
  position: absolute;
  top: 2vw;
  right: 5vw;
  width: 24vw;
  height: 8vw;
  border-radius: 4vw;
  background-color: rgba(0, 0, 0, 0.15);
  font: normal normal 3vw/8vw "Microsoft YaHei";
  text-align: center;
  color: #ddd;
}
.nav .right::before {
  content: "";
  position: absolute;
  top: 1.5vw;
  left: 3vw;
  width: 5vw;
  height: 5vw;
  background: url(../images/更多icon.png) no-repeat center;
  background-size: contain;
}
.nav .right::after {
  content: "";
  position: absolute;
  top: 2vw;
  right: 4vw;
  width: 4vw;
  height: 4vw;
  background: url(../images/关闭icon.png) no-repeat center;
  background-size: contain;
}
.demo {
  position: fixed;
  top: 12vw;
  left: 0vw;
  display: flex;
  justify-content: space-around;
  width: 100vw;
  height: 12vw;
  background-color: #efefef;
  z-index: 999;
}
.demo .total {
  width: 49.8vw;
  height: 12vw;
  border-right: 0.2vw solid #f6f7f8;
  background-color: #a3c3d1;
  font: normal normal 5vw/12vw "Microsoft YaHei";
  text-align: center;
  color: #019fe6;
}
.demo .rank {
  width: 49.8vw;
  height: 12vw;
  border-left: 0.2vw solid #f6f7f8;
  font: normal normal 5vw/12vw "Microsoft YaHei";
  text-align: center;
  color: #333;
}
.main #content_1 .demo1 {
  width: 100vw;
  margin: 26vw auto 0vw;
  overflow: hidden;
  background-color: #fff;
}
.main #content_1 .demo1 .icon {
  position: relative;
  width: 18vw;
  height: 18vw;
  border-radius: 12vw;
  background-color: #019fe6;
  box-shadow: 0vw 0vw 2vw 2vw #019fe6;
  margin: 5vw auto;
}
.main #content_1 .demo1 .icon::before {
  content: "";
  position: absolute;
  top: 3vw;
  left: 3vw;
  width: 12vw;
  height: 12vw;
  background: url(../images/扫一扫.png) no-repeat center;
  background-size: contain;
}
.main #content_1 .demo1 .title {
  width: 100vw;
  height: 10vw;
  font: normal normal 5vw/10vw "Microsoft YaHei";
  text-align: center;
  color: #000;
}
.main #content_1 .demo2 {
  width: 100vw;
  margin: 12vw auto 0vw;
  overflow: hidden;
  background-color: #fff;
}
.main #content_1 .demo2 .icon {
  position: relative;
  width: 18vw;
  height: 18vw;
  border-radius: 12vw;
  background-color: #019fe6;
  box-shadow: 0vw 0vw 2vw 2vw #019fe6;
  margin: 5vw auto;
}
.main #content_1 .demo2 .icon::before {
  content: "";
  position: absolute;
  top: 3vw;
  left: 3vw;
  width: 12vw;
  height: 12vw;
  background: url(../images/选择分拨.png) no-repeat center;
  background-size: contain;
}
.main #content_1 .demo2 .title {
  width: 100vw;
  height: 10vw;
  font: normal normal 5vw/10vw "Microsoft YaHei";
  text-align: center;
  color: #000;
}
.main #content_1 .demo3 {
  width: 100vw;
  margin: 12vw auto 0vw;
  overflow: hidden;
  background-color: #fff;
}
.main #content_1 .demo3 .icon {
  position: relative;
  width: 18vw;
  height: 18vw;
  border-radius: 12vw;
  background-color: #019fe6;
  box-shadow: 0vw 0vw 2vw 2vw #019fe6;
  margin: 5vw auto;
}
.main #content_1 .demo3 .icon::before {
  content: "";
  position: absolute;
  top: 3vw;
  left: 3vw;
  width: 12vw;
  height: 12vw;
  background: url(../images/批量分拨.png) no-repeat center;
  background-size: contain;
}
.main #content_1 .demo3 .title {
  width: 100vw;
  height: 10vw;
  font: normal normal 5vw/10vw "Microsoft YaHei";
  text-align: center;
  color: #000;
}
.main #content_2 .easy {
  width: 100vw;
  margin: 12vw auto;
}
.main #content_2 .easy .img {
  width: 100vw;
  height: 135vw;
  background: url(../images/一键铺货.png) no-repeat center;
  background-size: contain;
}
.main #content_2 .easy .btn {
  width: 96vw;
  height: 12vw;
  margin: 10vw auto;
  border-radius: 2vw;
  background-color: #019fe6;
  font: normal normal 5vw/12vw "Microsoft YaHei";
  text-align: center;
  color: #fff;
}
